"That was just me being silly because I like to have fun like that and also it was just me on the piano so I wanted to do something kind of special, unique and just have a good time," Keys told Capital FM.

"I mean, it's a festive environment, it's a really incredible moment so I just figured this would be cute."

Asked if Obama enjoyed her performance, she joked: "They told me they're going to play it everyday as the President rises. No, I'm kidding, I don't know, but I like it!